The Coca-Cola Twelve Hours of Sebring, International Grand Prix of Endurance, was the second round of the 1981 IMSA GT Championship and 1981 World Sportscar Championship.^[1] The race was held at the Sebring International Raceway, on March 21, 1981. Victory overall went to the No. 9 Personalized Autohaus Porsche 934 driven by Wayne Baker, Jim Mullen, and Kees Nierop.^[2][3][4]

Race results

Class winners in bold.

Pos	Class	No	Team	Drivers	Car	Laps
1	GTX	86	Bayside Disposal Racing	Hurley Haywood Al Holbert Bruce Leven	Porsche 935	245
2	GTX	90	Cooke Woods Racing / Garretson Enterprises	Roy Woods Ralph Kent-Cooke Skeeter McKitterick	Porsche 935 K3	242
3	GTX	2	Marty Hinze Racing	Marty Hinze Milt Minter Bill Whittington	Porsche 935 K3	240
4	GTX	3	Andial/Meister Racing	Howard Meister Rolf Stommelen Harald Grohs	Porsche 935	233
5	GTO	58	Charles Kendall	Chuck Kendall Pete Smith Dennis Aase	Porsche 911 Carrera RSR	218
6 DNF	GTX	30	Momo/Penthouse	Giampiero Moretti Charles Mendez Mauricio de Narváez	Porsche 935	213
7	GTO	23	Roe/Selby Racing	Tim Selby Earl Roe	Porsche 911 Carrera RSR	212
8	GTO	73	Z & W Enterprises	M. L. Speer Eddy Joosen Dick Vermeesch	Mazda RX-7	212
9	GTU	98	Kent Racing	Lee Mueller Walt Bohren	Mazda RX-7	211
10	GTO	44	Group 44	Bob Tullius Bill Adam	Triumph TR8	208
11	GTU	67	Pennzoil of Puerto Rico	Mike Ramirez Luis Gordillo Manuel Villa	Porsche 911	208
12	GTO	04	T & R Racing	Rene Rodriguez Tico Almeida Miguel Morejon	Porsche 911 Carrera RSR	203
13	GTO	54	Florida Crystals/Montura Racing	Albert Naon Tony Garcia Hiram Cruz	Porsche 911 Carrera RSR	203
14	GTO	35	H.S.M. Racing	Mandy Gonzalez Bonky Fernandez Juan Cochesa	Porsche 934	199
15	GTU	50	Downing/Maffucci Racing	Jim Downing Irv Hoerr Scott Hoerr	Mazda RX-7	196
16	GTU	49	Faza Squadra	Al Cosentino Bob Speakman	Mazda RX-7	190
17	GTX	9	Cooke Woods Racing/Garretson Enterprises	Bob Garretson Bobby Rahal Brian Redman	Porsche 935 K3	190
18 DNF	GTU	45	Autosport Technology	Dwight Mitchell Ray Ratcliff Bill Cooper	Porsche 914	189
19 DNF	GTO	28	NTS Racing	Sam Posey Fred Stiff	Datsun 280ZX Turbo	187
20	GTO	4	Group 44	John Kelly Pat Bedard	Triumph TR8	187
21 DNF	GTU	32	Alderman Datsun	George Alderman John McComb	Datsun 240Z	186
22	GTU	77	Bruce R. Jennings	Bruce Jennings Bill Bean Tom Ashby	Porsche 911	185
23	GTX	68	USA Racing	Richard Valentine Maurice Carter	Chevrolet Corvette	182
24	GTO	05	Miguel Morejon	Fred Flaquer Joe Gonzalez Angelo Dominguez	Porsche 911 Carrera RSR	182
25	GTU	31	Hallet Motor Racing Circuit	Anatoly Arutnoff Jose Marina	Lancia Stratos HF	177
26	GTX	84	Scorpio Racing	"Jamsal" Eduardo Barrientos Guillermo Valiente	Porsche 935	177
27	GTO	25	Red Lobster Racing	Dave Cowart Kenper Miller	BMW M1	176
28	GTU	81	Trinity Racing	Steve Dietrich Tom Winters Hugh McDonough	Mazda RX-7	174
29	GTX	83	George R. Shafer	George Shafer Craig Shafer Al Crookston	Chevrolet Camaro	173
30	GTO	34	Drolsom Racing	George Drolsom Rob Hoskins Buzz Marcus	Porsche 924 Carrera GTR	165
31 DNF	GTU	92	Kent Racing	Kathy Rude Divina Galica	Mazda RX-7	160
32	GTO	15	D. L. Performance Engineering	Doug Lutz Dave Panaccione	Porsche 911 Carrera RSR	155
33	GTU	52	Ours & Hours Racing	Jack Swanson Tom Cripe Van McDonald	Porsche 911	154
34 DNF	GTO	43	Bob Gregg Racing	Bob Gregg Bob Young Joe Varde	Porsche 911 Carrera	153
35	GTU	88	Klaus Bitterauf	Klaus Bitterauf James Moxley Jim Leo	Porsche 911	150
36 DNF	GTX	41	Statagraph	Billy Hagan Terry Labonte	Chevrolet Camaro	144
37 DNF	GTO	24	Jack Refenning	Jack Refenning Ren Tilton Peter Welter	Porsche 934	139
38	GTU	39	The Foreign Exchange	John Higgins Chip Mead Bill Johnson	Porsche 911	136
39	GTU	66	Dunham Trucking	Jack Dunham Tom Sheehy Luis Sereix	Mazda RX-7	136
40	GTX	02	Firestone Tire & Rubber	John Morton Tom Klausler	Ford Mustang	133
41 DNF	GTX	1	John Fitzpatrick Racing	John Fitzpatrick Jim Busby	Porsche 935 K3	129
42	GTO	60	Bob's Speed Products	Bob Lee Vicki Smith Tom Alan Marx	AMC AMX	128
43 DNF	GTU	62	Kegel Enterprises	Bill Koll Jeff Kline	Porsche 911 SC	121
44 DNF	GTX	0	Interscope Racing	Ted Field Danny Ongais	Porsche 935 K3	117
45 DNF	GTO	53	Fritz Hochreuter	Fritz Hochreuter Rainer Brezinka Gary Hirsch	Porsche 911 Carrera RSR	114
46 DNF	GTX	27	Kenneth LaGrow / Jack Holley	Kenneth LaGrow Jack Turner	Chevrolet Camaro	114
47 DNF	GTU	7	Loud Car Racing	Jim Mullen Michael Zimicki	Mazda RX-7	112
48 DNF	GTX	09	T-Bird Swap Shop	Preston Henn John Gunn Gary Belcher	Porsche 935 K3	107
49 DNF	GTO	14	BMW Challenge Team	Alf Gebhardt Marc Surer	BMW M1	106
50 DNF	GTU	57	Personalized Autohaus	Wayne Baker Robert Overby Dan Gilliland	Porsche 914	96
51 DNF	GTX	72	Vince Thompson	Del Russo Taylor Rex Ramsey	Chevron GTP	96
52 DNF	GTX	20	Chris Cord Racing	Chris Cord Jim Adams	Chevrolet Monza	94
53 DNF	GTX	97	The Cummings Marque	Don Cummings Tom Juckette	Chevrolet Monza	94
54 DNF	GTU	55	Mandeville Racing Ent.	Roger Mandeville Amos Johnson	Mazda RX-7	89
55 DNF	GTO	93	Sanyo/Russ Boy	John Carusso Russ Boy Rex Ramsey	Chevrolet Corvette	89
56 DNF	GTX	48	Meldeau Tire Stores	Bill McDill Robert Whitaker	Chevrolet Camaro	85
57 DNF	GTO	29	Bill Ferran	Nort Northam Chiqui Soldevilla	Porsche 911 Carrera RSR	84
58 DNF	GTU	82	Trinity Racing	Jim Cook John Casey Bob Bergstrom	Mazda RX-7	74
59 DNF	GTO	12	Performance Marine Racing	Jimmy Tumbleston Bobby Dumont Ford Smith	Chevrolet Camaro	63
60 DNF	GTX	5	Bob Akin Motor Racing	Bob Akin Derek Bell Craig Siebert	Porsche 935 K3	62
61 DNF	GTU	75	Z & W Enterprises	Pierre Honegger Pierre Dieudonné Jean-Paul Libert	Mazda RX-7	60
62 DNF	GTX	07	Heimrath Porsche	Ludwig Heimrath Sr. Ludwig Heimrath	Porsche 935	57
63 DNF	GTU	16	Corp Racing Ltd.	Doug Grunnet Jim Burt Steve Paquette	Mazda RX-7	50
64 DNF	GTO	40	David Deacon Racing	David Deacon Mike Freberg Rudy Bartling	BMW M1	47
65 DNF	GTX	94	Whittington Bros	Don Whittington Bill Whittington Dale Whittington	Porsche 935 K3	43
66 DNF	GTX	8	JLP Racing	John Paul Sr. John Paul Jr.	Porsche 935	40
67 DNF	GTO	79	Van Every Racing	Lance Van Every Richard Bond Ash Tisdelle	Porsche 911 Carrera RSR	27
68 DNF	GTO	56	Rick Borlase	Rick Borlase Michael Hammond Don Kravig	Porsche 911 Carrera RSR	27
69 DNF	GTO	03	Angelo Pallavicini	Angelo Pallavicini Neil Crang Dan Simpson	Porsche 934	23
70 DNF	GTO	89	Vette Brakes	Al Levenson Elizabeth Kleinschmidt Charles Kleinschmidt	Chevrolet Corvette	21
71 DNF	GTO	42	Cotrone Racing Enterprises	Joe Cotrone Kal Showket Phil Currin Emory Donaldson	Chevrolet Corvette	20
72 DNF	GTO	85	Sunrise Auto Parts	Jeff Loving Ralph Noseda Richard Small	Chevrolet Camaro	18
73 DNF	GTO	61	Sharkskin Racing	C. C. Canada Earle Moffitt Harry Cochran	Chevrolet Corvette	15
74 DNF	GTU	38	Case Racing	Ron Case Ray Mummery Jack Rynerson	Porsche 911	12
75 DNF	GTU	70	Doyle Racing	Chris Doyle Hubert Phipps	Mazda RX-7	10
76 DNF	GTU	21	Alps Restoration	Peter Aschenbrenner Peter Moennick Herman Lausberg	Porsche 914	6
77 DNF	GTO	13	Garcia Racing	John Lino George Garcia Fernando Garcia	Chevrolet Corvette	2
78 DNF	GTU	37	Vince Thompson	Janis Taylor Pat Godard Carol Cone	Alfa Romeo Alfetta	1
DNS	GTX	00	Interscope Racing	Danny Ongais Ted Field	Porsche 935 K3	0
DNS	GTX	18	JLP Racing	Werner Frank	Porsche 935	0
DNS	GTX	91	T-Bird Swap Shop	Preston Henn John Gunn Gary Belcher	Ferrari 512 BB	0
DNS	GTO	36	Herman + Miller P+A	Doc Bundy Paul Miller	Porsche 924 Carrera GTR	0
DNS	GTU	71	Morgan Performance Group	Charles Morgan Jim Miller Herb Forrest	Datsun 280ZX	0
DNS	GTO	10	T. C. Racing	Tim Chitwood Joe Varde	Chevrolet Camaro	0
DNS	GTU	01	T & R Racing	Fred Flaquer Joe Gonzalez Angelo Dominguez	Porsche 911 Carrera	0
DNS	GTO	46	BR Racing	Mark Leuzinger Mike van der Werff	De Tomaso Pantera	0
DNS	GTX	19	Chris Cord Racing	Chris Cord Jim Adams	Chevrolet Monza	0
DNS	GTX	22	Paul Canary Racing	John Gunn Paul Canary	McLaren M12 GT	0
DNS	GTO	65	Yenko Chevrolet	Gary English Don Yenko Bob McClure	Chevrolet Camaro	0
DNS	GTX	74	Z & W Enterprises	Pierre Honegger Ernesto Soto	Mazda RX-7 GTP	0

Class Winners